“Unregulated, unvetted travel is not a universal privilege, especially when national security is at stake,” Mr. Kelly added.

Trump adviser Kellyanne Conway added: “If you have travel docs, if you actually have a visa, if you are a legal permanent resident, you are not covered under this particular executive action.”

“We don’t want them here,” Mr. Trump had said when he signed the first order. “We want to ensure that we are not admitting into our country the very threats our soldiers are fighting overseas. We only want to admit those into our country who will support our country, and love deeply our people.”